Title Case

Transform text into Title Case format where the first letter of each word is capitalized and separated by spaces.

🚀 Features

• Lightweight - Only ~450B minified + gzipped
• Type-safe - Full TypeScript support with comprehensive type definitions
• Zero dependencies - No external dependencies
• Tree-shakeable - ES modules support
• Universal - Works in browsers, Node.js, and serverless environments
• Well-tested - Comprehensive test suite with edge cases
• Customizable - Flexible options for advanced use cases

📦 Installation

# npm
npm install text-title-case

# yarn
yarn add text-title-case

# pnpm
pnpm add text-title-case

# bun
bun add text-title-case

🎯 Quick Start

import { titleCase } from "text-title-case";

console.log(titleCase("hello world")); // "Hello World"
console.log(titleCase("user_profile_data")); // "User Profile Data"
console.log(titleCase("backgroundColor")); // "Background Color"

📖 Usage

ES Modules (Recommended)

import { titleCase } from "text-title-case";

console.log(titleCase("hello world")); // "Hello World"

CommonJS

const { titleCase } = require("text-title-case");

console.log(titleCase("hello world")); // "Hello World"

TypeScript

import { titleCase, Options } from "text-title-case";

const result: string = titleCase("hello world");
console.log(result); // "Hello World"

🔄 Transformation Examples

Basic Transformations

import { titleCase } from "text-title-case";

// From different cases
titleCase("hello world"); // "Hello World"
titleCase("Hello World"); // "Hello World"
titleCase("HELLO WORLD"); // "Hello World"
titleCase("camelCase"); // "Camel Case"
titleCase("PascalCase"); // "Pascal Case"
titleCase("snake_case"); // "Snake Case"
titleCase("kebab-case"); // "Kebab Case"
titleCase("dot.case"); // "Dot Case"

// Complex examples
titleCase("XMLHttpRequest"); // "Xml Http Request"
titleCase("iPhone"); // "I Phone"
titleCase("version 1.2.3"); // "Version 1 2 3"
titleCase("userProfileData"); // "User Profile Data"

Advanced Options

import { titleCase } from "text-title-case";

// Custom word splitting
titleCase("XMLHttpRequest", {
  splitRegexp: /([a-z])([A-Z])/g,
}); // "Xml Http Request"

// Custom character stripping
titleCase("hello@world.com", {
  stripRegexp: /[@.]/g,
}); // "Hello World Com"

// Custom transformation function
titleCase("api-v2-endpoint", {
  transform: (word, index) => {
    if (word === "api") return "API";
    if (word === "v2") return "V2";
    return word.charAt(0).toUpperCase() + word.slice(1).toLowerCase();
  },
}); // "API V2 Endpoint"

🌍 Real-World Examples

Headers and Titles

import { titleCase } from "text-title-case";

// Page titles
titleCase("user profile settings"); // "User Profile Settings"
titleCase("account management"); // "Account Management"
titleCase("privacy policy"); // "Privacy Policy"
titleCase("terms of service"); // "Terms Of Service"
titleCase("getting started guide"); // "Getting Started Guide"

Navigation and Menu Items

import { titleCase } from "text-title-case";

// Menu items
titleCase("home page"); // "Home Page"
titleCase("about us"); // "About Us"
titleCase("contact information"); // "Contact Information"
titleCase("product catalog"); // "Product Catalog"
titleCase("customer support"); // "Customer Support"

Form Labels

import { titleCase } from "text-title-case";

// Form fields
titleCase("first name"); // "First Name"
titleCase("email address"); // "Email Address"
titleCase("phone number"); // "Phone Number"
titleCase("date of birth"); // "Date Of Birth"
titleCase("billing address"); // "Billing Address"

Business and Technical Terms

import { titleCase } from "text-title-case";

// Business terms
titleCase("project management"); // "Project Management"
titleCase("quality assurance"); // "Quality Assurance"
titleCase("human resources"); // "Human Resources"
titleCase("customer relationship"); // "Customer Relationship"

// Technical documentation
titleCase("api reference"); // "Api Reference"
titleCase("installation guide"); // "Installation Guide"
titleCase("troubleshooting tips"); // "Troubleshooting Tips"

Content Management

import { titleCase } from "text-title-case";

// Transform content titles
const blogPosts = [
  "getting_started_with_react",
  "advanced-javascript-patterns",
  "building_scalable_apis",
];

const formattedTitles = blogPosts.map(titleCase);
console.log(formattedTitles);
// [
//   "Getting Started With React",
//   "Advanced Javascript Patterns",
//   "Building Scalable Apis"
// ]

// Article categories
titleCase("web development"); // "Web Development"
titleCase("machine learning"); // "Machine Learning"
titleCase("data science"); // "Data Science"

📖 API Reference

titleCase(input, options?)

Converts a string to Title Case.

Parameters

• input (string): The string to convert
• options (Options, optional): Configuration options

Returns

• string: The Title Case formatted string

Options

interface Options {
  // Custom transform function for word processing
  transform?: (word: string, index: number, words: string[]) => string;

  // Regex to strip characters before processing
  stripRegexp?: RegExp;

  // Custom split function
  split?: (value: string) => string[];
}

🔧 Advanced Configuration

Custom Word Splitting

import { titleCase } from "text-title-case";

// Split on specific patterns
titleCase("XMLHttpRequest", {
  splitRegexp: /([a-z])([A-Z])/g,
}); // "Xml Http Request"

// Split on numbers
titleCase("user123data", {
  splitRegexp: /([a-zA-Z])(\d)/g,
}); // "User 123 Data"

Custom Character Stripping

import { titleCase } from "text-title-case";

// Strip specific characters
titleCase("hello@world.com", {
  stripRegexp: /[@.]/g,
}); // "Hello World Com"

// Strip all non-alphanumeric
titleCase("hello!@#world", {
  stripRegexp: /[^a-zA-Z0-9]/g,
}); // "Hello World"

Custom Transform Functions

import { titleCase } from "text-title-case";

// Preserve acronyms
titleCase("xml-http-request", {
  transform: (word, index) => {
    const acronyms = ["xml", "http", "api", "url", "html", "css", "js"];
    if (acronyms.includes(word.toLowerCase())) {
      return word.toUpperCase();
    }
    return word.charAt(0).toUpperCase() + word.slice(1).toLowerCase();
  },
}); // "XML HTTP Request"

// Custom business logic
titleCase("user-v2-api", {
  transform: (word, index) => {
    if (word === "v2") return "V2";
    if (word === "api") return "API";
    return word.charAt(0).toUpperCase() + word.slice(1).toLowerCase();
  },
}); // "User V2 API"

📊 Bundle Size

This package is optimized for minimal bundle size:

• Minified: ~450B
• Gzipped: ~250B
• Tree-shakeable: Yes
• Side effects: None

🌍 Browser Support

• Modern browsers: ES2015+ (Chrome 51+, Firefox 54+, Safari 10+)
• Node.js: 12+
• TypeScript: 4.0+
• Bundle formats: UMD, ESM, CommonJS

🧪 Testing

# Run tests
pnpm test

# Run tests in watch mode
pnpm test --watch

# Run tests with coverage
pnpm test --coverage

# Type checking
pnpm typecheck

# Linting
pnpm lint

🔗 Related Packages

• text-camel-case - Convert to camelCase
• text-pascal-case - Convert to PascalCase
• text-snake-case - Convert to snake_case
• text-kebab-case - Convert to kebab-case
• text-case - All case transformations in one package

📜 License

MIT © Dmitry Selikhov

🤝 Contributing

1. Fork the repository
2. Create your feature branch (git checkout -b feature/amazing-feature)
3. Commit your changes (git commit -m 'Add some amazing feature')
4. Push to the branch (git push origin feature/amazing-feature)
5. Open a Pull Request

🆘 Support

• 📧 Email: selikhov.dmitrey@gmail.com
• 🐛 Issues: GitHub Issues
• 💬 Discussions: GitHub Discussions
• 📖 Documentation: Full Documentation

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Made with ❤️ by Dmitry Selikhov